Snow tire

The invention relates to a snow tire. The snow tire comprises a tire body, a cord ply, a belt ply and a tread; at least four longitudinal grooves, which extend in the circumferential direction of thetire body, are formed in the tread; the number of the longitudinal grooves is an even number; and the longitudinal grooves are symmetrically formed relative to the center line of the thread and are shaped like broken lines. Therefore, the cut-in capacity of the tire is improved so that the anti-skid performance on snow is improved and the operability is enhanced. In addition, as the widths and bending angles of the two longitudinal grooves close to the center line of the tread are smaller than those of the rest longitudinal grooves, the middle position of the tread realizes better guidance quality; and as the tread of an area close to the external side realizes larger ground grip force, the side slip prevention performance is improved. 本发明涉及了种雪地轮胎，包括轮胎本体、帘布层、带束层和胎面，在胎面上设置有至少四条沿轮胎本体圆周方向延伸的纵向槽，数量为偶数，其相对于胎面中心线对称布置，且呈